da8xx-usb.txt

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    1 TI DA8xx MUSB
    2 ~~~~~~~~~~~~~
    3 For DA8xx/OMAP-L1x/AM17xx/AM18xx platforms.
    4 
    5 Required properties:
    6 ~~~~~~~~~~~~~~~~~~~~
    7  - compatible : Should be set to "ti,da830-musb".
    8 
    9  - reg: Offset and length of the USB controller register set.
   10 
   11  - interrupts: The USB interrupt number.
   12 
   13  - interrupt-names: Should be set to "mc".
   14 
   15  - dr_mode: The USB operation mode. Should be one of "host", "peripheral" or "otg".
   16 
   17  - phys: Phandle for the PHY device
   18 
   19  - phy-names: Should be "usb-phy"
   20 
   21  - dmas: specifies the dma channels
   22 
   23  - dma-names: specifies the names of the channels. Use "rxN" for receive
   24    and "txN" for transmit endpoints. N specifies the endpoint number.
   25 
   26 Optional properties:
   27 ~~~~~~~~~~~~~~~~~~~~
   28  - vbus-supply: Phandle to a regulator providing the USB bus power.
   29 
   30 DMA
   31 ~~~
   32 - compatible: ti,da830-cppi41
   33 - reg: offset and length of the following register spaces: CPPI DMA Controller,
   34   CPPI DMA Scheduler, Queue Manager
   35 - reg-names: "controller", "scheduler", "queuemgr"
   36 - #dma-cells: should be set to 2. The first number represents the
   37   channel number (0 … 3 for endpoints 1 … 4).
   38   The second number is 0 for RX and 1 for TX transfers.
   39 - dma-channels: should be set to 4 representing the 4 endpoints.
   40 - #dma-channels: deprecated
   41 
   42 Example:
   43         usb_phy: usb-phy {
   44                 compatible = "ti,da830-usb-phy";
   45                 #phy-cells = <0>;
   46         };
   47         usb0: usb@200000 {
   48                 compatible = "ti,da830-musb";
   49                 reg = <0x00200000 0x1000>;
   50                 ranges;
   51                 #address-cells = <1>;
   52                 #size-cells = <1>;
   53                 interrupts = <58>;
   54                 interrupt-names = "mc";
   55 
   56                 dr_mode = "host";
   57                 vbus-supply = <&usb_vbus>;
   58                 phys = <&usb_phy 0>;
   59                 phy-names = "usb-phy";
   60 
   61                 dmas = <&cppi41dma 0 0 &cppi41dma 1 0
   62                         &cppi41dma 2 0 &cppi41dma 3 0
   63                         &cppi41dma 0 1 &cppi41dma 1 1
   64                         &cppi41dma 2 1 &cppi41dma 3 1>;
   65                 dma-names =
   66                         "rx1", "rx2", "rx3", "rx4",
   67                         "tx1", "tx2", "tx3", "tx4";
   68 
   69 
   70                 cppi41dma: dma-controller@201000 {
   71                         compatible = "ti,da830-cppi41";
   72                         reg =  <0x201000 0x1000
   73                                 0x202000 0x1000
   74                                 0x204000 0x4000>;
   75                         reg-names = "controller", "scheduler", "queuemgr";
   76                         interrupts = <58>;
   77                         #dma-cells = <2>;
   78                         dma-channels = <4>;
   79                 };
   80 
   81         };

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sys/contrib/device-tree/Bindings/usb/da8xx-usb.txt